1. Identify the compound A and B in the following reaction sequence

2. Nitrobenzene on reaction with conc. HNO₃/H₂SO₄ at 80 – 100°C forms which one of the following products?

3. The compound C₃H₄ has a triple bond, which is indicated by its reaction with

4. The coal tar fraction which contains phenol is:

5. An organic compound has a triple bond and not double bond. It can be test by

6. The catalyst used in Friedel – Crafts reaction is

7. Arrange the following hydrogen halides in order of their decreasing reactivity with propane.

8. The position of double bond in alkenes can be located by :

9. Tetrabromoethane on heating with Zn gives

10. Which one of these is not true for benzene?

11. The first fraction obtained during the fractionation of petroleum is:

12. Arrange the following in decreasing order of their boiling points.

(A) n–butane (B) 2–methylbutane

(C) n-pentane (D) 2,2–dimethylpropane

13. Isopropyl bromide on Wurtz reaction gives

14. Presence of a nitro group in a benzene ring

15. Hydrocarbon containing following bond is most reactive

16. The lowest alkene, that is capable of exhibiting geometrical isomerism is

17. 2 – Phenylpropene on acidic hydration gives

18. When 2-butyne is treated with dil.H₂SO₄/HgSO₄, the product formed is

19. The increasing order of reduction of alkyl halides with zinc and dilute HCl is

20. Alkyl halides react with dialkyl copper reagents to give?